B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 24/28 (2006.01) A61M 1/10 (2006.01) A61M 1/16 (2006.01) A61M 1/26 (2006.01)
Patent
CA 2358066
An integrated blood pump/oxygenator (80) having a rotating hollow fiber bundle assembly (81) that both oxygenates, and pumps blood is provided that includes a plurality of partitions (82) (84) (85) disposed within or about the fiber bundle assembly (81) to lengthen the flow path of blood (87) (88) passing through the fiber bundle (81). Alternatively, or in addition, blood flow paths (87) (88) may be lengthened, oxygenation improved by providing internal recirculation paths within the pump/oxygenator, which also advantageously may be used to reduce blood trauma caused by stagnation nearing moving parts, and heat build-up.
Cette invention concerne un système de pompe à sang-oxygénateur (80) comportant un ensemble tournant fait d'une masse fibreuse (81) creuse qui assure à la fois l'oxygénation et le pompage du sang. Ce système comporte une pluralité de séparations (82) (84) (85) disposées à l'intérieur ou autour du faisceau fibreux (81), dont la fonction est d'accroître la longueur du passage du sang (87) (88) dans la masse fibreuse (81). En variante, ou en plus, on peut augmenter la longueur du parcours sanguin(87) (88) et améliorer l'oxygénation du sang au moyen de voies de circulation interne dans l'ensemble pompe-oxygénateur, ce qui offre de surcroît l'avantage de réduire les lésions sanguines provoquées par la stagnation du sang à l'approche de pièces en mouvement ainsi que la formation de chaleur.
Farhangnia Mehrdad
Leynov Alex
Loeffler Joseph
Piplani Alec A.
Potts Greg
Cardiovention Inc.
Smart & Biggar
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